Except what you said is not at all true. Dell, hp, and Lenovo have a whole bunch of different models for different laptops. They're also very customizable, so the model may be slightly different if you want different hardware. But you're arguing for less consumer choice. Dell, hp, and Lenovo do not swap models around to try to fool consumers. Quite the contrary; you can search a very old model number and find exactly what you're looking for on their site.